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Detailed Reference Information |
Friedel, R.H.W., Korth, H., Henderson, M.G., Thomsen, M.F. and Scudder, J.D. (2001). Plasma sheet access to the inner magnetosphere. Journal of Geophysical Research 106: doi: 10.1029/2000JA003011. issn: 0148-0227. |
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We present here plasma data from the Polar HYDRA instrument giving comprehensive coverage of the inner magnetospheric region from L~2 outward. Data is projected to an equatorial reference plane yielding a global view of the inner extend of the plasma sheet. We determine the inner boundary for plasma sheet electrons and ions in the &mgr; range 0.05--50 eV nT-1 and we compare these to the predicted Alfv¿n boundaries as a function of the geomagnetic activity index Kp. In general, the simple conventional drift paradigm is shown to be globally consistent with the averaged data in the inner magnetosphere, with electrons adhering better to the predicted boundaries than ions. The data are further compared to the geosynchronous slice as measured by the Los Alamos Magnetospheric Plasma Analyzer (MPA) which measures the crossing point of the Alfv¿n boundaries at geosynchronous altitudes with much better statistical resolution than Polar. Integral to the drift model used is an assumption about the form of the global electric field. The agreement with data validates the simple corotation and convection electric field used and shows that this model describes well the average transport for a wide range of geomagnetic activity and over a large part of the inner magnetosphere. ¿ 2001 American Geophysical Union |
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Abstract |
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Keywords
Magnetospheric Physics, Magnetosphere—inner, Magnetospheric Physics, Magnetospheric configuration and dynamics, Magnetospheric Physics, Plasma convection, Magnetospheric Physics, Plasma sheet |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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